An edited version of the 4½ hour serial about a mad scientist who attempts to rule the world by creating various elaborate inventions.

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Main Cast: Bela Lugosi, Dorothy Arnold, Robert Kent, Edwin Stanley, Regis Toomey, Jack C. Smith, Edward Van Sloan, Dora Clement, Anthony Averill, Hugh Huntley

Directors: Ford Beebe, Saul A. Goodkind

Writers: George H. Plympton, Basil Dickey, Mildred Barish

Editors: Alvin Todd, Irving Birnbaum, Joseph Gluck

Cinematographers: Jerome Ash, William A. Sickner

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